Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a first side view thereof;

FIG. 6 is a second side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a rear perspective view thereof. 

I claim the ornamental design for a vacuum cleaner, as shown and described. 